Dehumidification filter element and air filter

Abstract

The utility model discloses a dehumidification filter element and an air filter. A limiting assembly comprises a first limiting ring acting on the inner side of a filter layer and a second limiting ring acting on the outer side of the filter layer. The first limiting rings and the second limiting rings are arranged in a staggered mode. The dehumidification filter element is folded, so that a plurality of annularly distributed folds are formed inside and outside the filter layer, and the filter area is greatly increased. By means of the design, when air passes through the filter element, the air can make more sufficient contact with the filter element material, and therefore the filtering efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a dehumidifying filter element and an air filter, belonging to the field of filters. Background Technology

[0002] With the development and progress of technology, people began to invent and use air purifiers to purify the air. Existing tubular filters play a major role in purifying the air by installing tubular filter screens.

[0003] Traditional dehumidifier filters often use a flat or simple pleated structure. While this structure can provide a certain filtration area, it often creates dead air zones during airflow, causing some air to fail to fully contact the filter material, thus affecting filtration efficiency and dehumidification effect. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a dehumidifying filter element and an air filter to solve the problem.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dehumidifying filter element and an air filter, comprising a filter layer; the filter layer is in the shape of a hollow cylinder; the filter layer is folded to form several annularly distributed pleats both inside and outside the filter layer; a limiting component is provided on the filter layer to fix the pleats of the filter layer; the limiting component includes a first limiting ring acting on the inner side of the filter layer and a second limiting ring acting on the outer side of the filter layer; the first limiting ring and the second limiting ring are staggered.

[0006] Preferably, the filter layer is made of a water-absorbing material.

[0007] Preferably, the limiting component includes a first limiting ring acting on the inner side of the filter layer and a second limiting ring acting on the outer side of the filter layer; the diameter of the first limiting ring is smaller than that of the filter layer, and the diameter of the second limiting ring is larger than that of the filter layer.

[0008] Preferably, both the first limiting ring and the second limiting ring have the same structure as the filter layer, so that the pleated protrusions and pleated recesses of the limiting component are correspondingly embedded in the pleated recesses and pleated protrusions of the filter layer.

[0009] Preferably, there are several limiting components.

[0010] Preferably, the first limiting ring and the second limiting ring are staggered.

[0011] An air filter includes a frame fixed to the upper and lower sides of the filter layer; the frame has an opening arranged in a ring shape.

[0012] Preferably, the opening is positioned horizontally on the upper and lower sides of the filter layer.

[0013] Beneficial effects

[0014] This novel dehumidifying filter cartridge utilizes a folding process to create numerous annularly distributed pleats both inside and outside the filter layer, significantly increasing the filtration area. This design allows air to make more thorough contact with the filter material as it passes through, thereby improving filtration efficiency. The staggered arrangement of the limiting components also guides the staggered flow of air within the filter cartridge, resulting in a more uniform airflow distribution. This uniform airflow distribution helps improve filtration efficiency and dehumidification effect, while reducing dead air zones and preventing the problem of some air failing to fully contact the filter material. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the structure of a dehumidifying filter element and an air filter according to the present invention;

[0017] Figure 2 This is a top view of the limiting component of this utility model;

[0018] Figure 3 This is a schematic diagram of the airflow filtering method of this utility model. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please see Figure 1 , Figure 2 This utility model provides a dehumidification filter element technical solution, including:

[0021] The filter layer 1 is a hollow cylinder made of absorbent paper. The filter layer 1 is folded so that several ring-shaped pleats are formed on both the inside and outside to increase the filtration area and water absorption efficiency.

[0022] The limiting component 2 is used to fix the pleated shape of the filter layer 1 and to allow air to flow in a staggered manner, preventing deformation during use and ensuring sufficient adsorption of moisture in the air. Specifically, the limiting component 2 includes a first limiting ring 21 and a second limiting ring 22, which act on the inner and outer sides of the filter layer 1, respectively.

[0023] Furthermore, the diameter of the first limiting ring 21 is smaller than that of the filter layer 1, and its structure is the same as that of the filter layer 1. The pleated protrusions and pleated concave parts are correspondingly embedded in the pleated concave parts and pleated protrusions of the filter layer 1 to achieve stable fixation.

[0024] Furthermore, the second limiting ring 22 has a larger diameter than the filter layer 1 and has the same structure as the filter layer 1. Its pleated part is interlocked with the pleated part of the filter layer 1, and together with the first limiting ring 21, it forms an inner and outer double-layer fixation.

[0025] See Figure 3 The first limiting ring 21 and the second limiting ring 22 are staggered on the filter layer 1, which not only enhances the overall stability, but also guides the intake filtered air after installation, so that the flowing gas is staggered to fully adsorb the water vapor in the air.

[0026] The first limiting ring 21 and the second limiting ring 22 are made of hot melt adhesive, which is a malleable adhesive that is solid at room temperature and can quickly bond after being heated and melted. It exhibits rapid bonding, typically requiring only tens of seconds, or even just a few seconds, from application to cooling and solidification. It can be repeatedly heated for multiple bonding cycles. Therefore, after the filter layer 1 is folded, adhesive is applied to its surface using a gluing machine.

[0027] Several limiting components 2 can be set as needed to ensure the stability of the pleats in the filter layer 1.

[0028] An air filter employs the dehumidifying filter element described above, and includes upper and lower parts fixed to the filter layer 1 for supporting and fixing the dehumidifying filter element. An opening 31 is provided in a ring shape on the frame 3 to allow air to pass through the filter layer 1. Specifically, the opening 31 is positioned horizontally on the upper and lower parts of the filter layer 1 to allow for better air permeability of the thick pleats.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dehumidifying filter element, comprising a filter layer; the filter layer being a hollow cylinder; the filter layer being folded to form a plurality of annularly distributed pleats both inside and outside the filter layer; a limiting component being provided on the filter layer to fix the shape of the pleats; characterized in that: The limiting component includes a first limiting ring acting on the inner side of the filter layer and a second limiting ring acting on the outer side of the filter layer; the first limiting ring and the second limiting ring are alternately arranged.

2. The dehumidifying filter element according to claim 1, characterized in that: The filter layer is made of water-absorbing material.

3. A dehumidifying filter element according to claim 1, characterized in that: The diameter of the first limiting ring is smaller than that of the filter layer, and the diameter of the second limiting ring is larger than that of the filter layer.

4. A dehumidifying filter element according to claim 3, characterized in that: Both the first limiting ring and the second limiting ring have the same structure as the filter layer, so that the pleated protrusions and pleated concave parts of the limiting component are correspondingly embedded into the pleated concave parts and pleated protrusions of the filter layer.

5. A dehumidifying filter element according to claim 4, characterized in that: Several limiting components are provided.

6. An air filter, employing a dehumidifying filter element as described in any one of claims 1-5, characterized in that: It includes a frame fixed to the upper and lower sides of the filter layer; the frame has an opening in a ring shape.

7. An air filter according to claim 6, characterized in that: The opening is positioned horizontally on the upper and lower sides of the filter layer.

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